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AC WD45 
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Joined: 28 Sep 2009
Location: Mid Michigan
Points: 2060
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 Topic: D17 kit increase Hp?
Posted: 22 May 2011 at 1:43pm |
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My Wd45 has the D17 kit (D17 sleeves, pistons etc) I was wondering how much the kits boosted HP? Was told it turned 55hp on the dyno I think but I can't quite remember. I know is sure made her harder to start, takes two 6volts
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German Shepherd dad
1957 Allis Chalmers WD45
#WD234847
1951 Allis Chalmers WD
#WD88193
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LionelinKY
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Joined: 12 Sep 2009
Location: Radcliff,KY
Points: 695
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Posted: 22 May 2011 at 2:49pm |
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My dad had the same done with our WD45 many years ago and said she dynoed at 56 pto hp when they finished the rebuild.
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"My name is Lionel and I'm an Allisoholic"
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CTuckerNWIL
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Joined: 11 Sep 2009
Location: NW Illinois
Points: 22824
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Posted: 22 May 2011 at 2:54pm |
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I would like to know what a D17 kit is. Both the 45 and the 17 had a 4 inch bore and a 4 1/2 inch stroke so sleeves and pistons would interchange. Did the 17 have a taller piston to increase compression or was the only difference a heavier spring on the governor?
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Brian Jasper co. Ia
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Joined: 11 Sep 2009
Location: Prairie City Ia
Points: 10508
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Posted: 22 May 2011 at 4:22pm |
I think ML Pankey had all the various specs on the 226. The Nebraska Test book only gives the compression on the LP version of the D17 at 8.25-1. 1400 vs 1650 RPM's. I sure he said there was a bump in compression to go with more RPM's. The gas 45 is test 499. Test 511 is the distillate 45 and 512 the LP version. In test 512 the writer makes reference to the gas 45 having 6.45-1, the LP 7.2-1, and the distillate 4.75-1. Test 635 is the gas D17, 636 diesel, and 644 LP. The complete test reports can be found on University of Nebraska's web site. They might have all the compression ratios in the complete test reports.
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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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CTuckerNWIL
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Joined: 11 Sep 2009
Location: NW Illinois
Points: 22824
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Posted: 22 May 2011 at 5:38pm |
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I kinda figured the ratios went up as the 17 progressed but the kits you buy today, at least what I have seen, don't advertise comp ratios. I don't know how a guy would know what he's getting until he could measure things.
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Steve M C/IL
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Joined: 01 Jul 2010
Location: shelbyville IL
Points: 691
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Posted: 23 May 2011 at 12:16am |
45 was 6.5:1....17 was 7.25:1 or 7.5:1....170 is 8.25:1.....I think
Yeah Charlie,they used to brag up C/R but you can't find it these days. The knock off M&W's (no advertised C/R) I put in my 45 measued out to be 6.5 instead of 7.3 like the real ones.At least now you can time it to the original fire mark without knocking.LOL
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Fields
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Joined: 25 Apr 2011
Location: Reedsburg, Wi
Points: 359
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Posted: 23 May 2011 at 6:26am |
I got this pic off of here awail ago. shows the piston hights. 
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Brian Jasper co. Ia
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Location: Prairie City Ia
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Posted: 23 May 2011 at 1:52pm |
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If we ever get a FAQ area, this thread would be worth keeping.
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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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CTuckerNWIL
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Location: NW Illinois
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Posted: 23 May 2011 at 7:05pm |
Brian, there is a FAQ area but it only includes questions about how the site works. What we need is a FAAQ or Frequently Asked Allis Questions. I have thought about that. If I ever set up a website of my own, it will have a place to save some of these type questions and it will have links to all the good sites with Allis Chalmers info.
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